<%--
  Created by IntelliJ IDEA.
  User: Administrator
  Date: 2022/6/4
  Time: 17:16
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%
    String callback = request.getParameter("callback");
    if(callback == null || "".equals(callback)){
        out.print("{\"abc\":123}");
    }else{
        out.print(callback+"({\"abc\":123})");
    }

%>
